Assuming the Halo Edition Xbox still has the standard video out that all 360s have, just use the Xbox 360 VGA Cable. Be wary though, most of them tend to to have bent pins. You can just unbend them, but it can be kind of a hassle.

I have the same monitor as the OP, and I don't switch plugs, but I use DVI for my Mac Pro. If both devices are connecting via VGA, then yes, he will have to unplug and replug things in to get them to work.

You could mod the 360s standard video cable yes, but i was talking about buying an Xbox 360 VGA cable (linked earlier in the thread). With the 360 VGA cable, you just plug it into the video out on the 360 and into the VGA (blue) input.
Similarly ReanimationLP suggested getting an HDMI cable which would plug into the HDMI out on the Halo 360, and then getting a DVI/HDMI adapter. This, , plus an HDMI cable is what you would need to go the HDMI route.
Although, since HDMI carries sound and DVI doesn't, I'm not sure what you would do about sound...

Then I guess the best solution is to get the VGA Cable. One thing I don't understand, that is, after plugging the VGA cables and stuffs.. will I be able to return to my desktop without changing the (blue) input?

Then I guess the best solution is to get the VGA Cable. One thing I don't understand, that is, after plugging the VGA cables and stuffs.. will I be able to return to my desktop without changing the (blue) input?

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